Bobbin winder



July 22 1924. 1,502,074

S. W. WARDWELL BOBBIN WINDER Filed April 30 1919 2 Sheets-Sheet 1 July 22 1924.

. s. w. WARDWELL BOBBIN WINDER Filed April 30 1919 2 Sheets-Sheet 2 Patented Jtlly 22, 1924.

UNITED STATES PATENT OFFICE.

SIMON W. WABDWELL, OF PROVIDENCE, RHODE TSLAND; CARL V. J. CHRISTENSEN,

EDWIN C. SMITH, ARTHUR QBMINGTON, AND WILLARD w. BARDSLE'Y EXECU- TOBS F SAID SIMON W. WABDWELL, DECEASED.

aonnm wrmmn.

Application filed April so, 1919. Serial a... 293,529.

To all whom it may concern:

Be it known that I, SIMON W. WanpwnLL, a citizen of the United States, residing at Providence, in the county of Prov dence,

State of Rhode Island, have invented certain new and useful Improvements in Bobbin Winders, of which the following is a specification.

M invention relates to improvements 1n win in machines and particularl to machines gor winding relatlvely smal bobbins and cops for sewing-machines or loom-shuttles. The object of my improvement is to provide an extremely light, simple and easyrunning mechanism which may be 1ncorporated in the structure of the sewmgmachine head or adapted for attachment to the loom frame. A further object of the improvement is to provide a machine for winding bobbins by a systematic method of disposing the coils in place to secure what is now known in the art as the Wardwell or V-wind, whereby the bobbin or cop is made more compact, and whereof the thread or yarn will deliver more freely with a uniform tension in unwinding it.

The manner and means for carrying out these improvements are fully described 1n the following specification illustrated by the accompanying drawings, 1n which hke reference characters designate like parts. In the drawings:

' Fig. 1 is a vertical sectional view of a portion of the arm of a sewing-machine head, showing my improved winding-mechanismas applied thereto and illustrating the manually-controlled means for connecting it to be driven from the main drive-shaft of the machine.

Fig. 2 is a vertical sectional view taken on the line X-X of Fig. 1, looking in the direction indicated by the arrow at, and showin that portion of the arm which encloses t e winding-mechanism and its driving means;

- ig. 3 is a detall new of the drivingmeans; I

Fig. 4 is an enlarged detail view of the traverse-cam which reciprocates the threadguide of the winder; and,

Fig. 5 is a correspondingly-enlarged perspective view of the thread-guide.

Referring first to Fig. 1, my improved winder W is here shown as incorporated in the head of a sewing-machine, the standard or butt end of the overhanging arm A of which serves as a housing and frame for the winding-mechanism. The shell 2 of the arm A is cored out at its upper, rearward end to lprovide a chamber or pocket 3 having wa s formed with bearings for the operating elements of the winder. -These latter comprise, essentially, a vertical windingspindle 4, on which the bobbin B is wound, and a reciprocating thread-guide 5 for traversin the thread back and forth on the bobbin. referably, the shell 2 of the arm A is constructed in two complementary parts with its opposite halves joined in a vertical plane, as indicated at 66 Fig. 2, and secured to ether by suitable cross-pins or rivets 7%.

The lower end of the winding-spindle 4 is step ed in a bearing 8 in a horizontal web 9 on t e interior of the arm A, while its upper end 10 projects through a bearing 11 in the shell 2. .The projecting end 10 of the spindle 4 is axially counterbored at 12 and split diametrically at 13 to provide for its contraction when the bobbin-shell b is slipped on over it, whereby to cause the spindle to grip the bore of the bobbin to hold it rotatively thereon. For sewing-machine use the bobbin-shell b is usually constructed of sheet-metal with a hollow barrel 15 and disk-like end flanges or heads 16-16; but for loom-shuttle cops or other types of bob:

bins a paper tube might be used in its stead.

Below the spindle-bearing 11 is another bearing 18 projecting inwardly from the shell 2 and between this and the lower bearing 8 1s a tubular sleeve or bushing 19 enclosing the spindle 4 and free rotatively thereof. The sleeve 19 carries the traversecam 20 which, as shown more particular] in Fig. 4, is constructed of sheet-metal wit a tubular hub 21 supporting the distorted disk 22 at one end. The disk or flange 22 is dished on opposite sides and pressed into shape to form its outer portion with a con.-

tinuous helical rim 23 arranged in a plane at right-angles to its axis. The hub 21 of the cam 20 is. connected rotatively with the s indle-sleeve 19 by means of a pin 24, the s eeve serving as the driving-element for the cam through means as later described.

As shown in Fig. 5, the thread-guide 5,

' posits V-shape to adapt them to strad e the sides of the rim 23 of the cam 20, see Fig. 4. The upper, slotted end of the guide 5 projects through its bearing 26 in the shell 2 in proximity with the rim of; the bobbin 5 and is reciprocated in relation thereto by the rotating traverse-cam 20 which engages its lugs ee-es.

The cam 20 is driven from a gear 30 formed with a hub 31 keyed to the sleeve 20 by means of a pin 32. Beneath the gear 30 is another gear 33 having: its hub 34;

keyed to the spindle 4 by a crossin 35.

The gear 33 is arranged between t e end of the sleeve 19 and the bearin 8, whereby it prevents end movement 0 the sleeve, besides taking the end thrust ofthe spindle 4. for which it serves as the driving element. The gears 30 and 33 are connected to be driven from a vertical stud-shaft 36 journaled in a bearing 37in the wall 9, and a second bearing 38 formed by;a cross-rib 39 extending between the sidesfof the shell '2. see also Fig. 2. The upper end of the shaft 36" is formed with teeth-to provide a pinion 40 meshing with the gear,30, while a second 'nion 41 has its hubflsecured to the shaft by a cross pin 42 and is". arranged in mesh with the gear 33. The -pinion 4:0 is of less'diameter than the pinion 41 so that driving through the larger gear 30 it rotates the sleeve 19 and cam 20 at a rela tively slow speed; 'while the spindle 4 is driven at a much faster rate t rough the equal gearsd1 and 33. At the lower end of the shaft 36 is a bevel-gear 44% secured therethe gear 63 with the gear at the shaftj 50 on by a pin 45 extending through'its hub 46. The hubs of the two gears 41 and bear respectively against the bearings 37 "and 38 to take the end thrust of the shaft 36. w.

The com lete winding-mechanism is embodied in tli above described and is operatedi'from. the main driving-means of the sewing-machine as next explained: Journaled in bearings 48- -49 formed on the interior of the arm A is a horizontal shaft 50 which carries a hand-wheel H at its outer end. In some instances the shaft 50- may serve as the main power-shaft of the sewing-machine,

the wheel H beingconnected to thetreadleoperated driving-wheel by a belt, or in The guide 5 is arranged in parallel.

e simple arrangement of parts modern other cases driven from the friction gearor an electric motor. In the present embodiment, however, l have shown the shaft 50 as adapted to be I driven from a vertical power-shaft. 52 through a System of gearmg and manually-controlle clutch-devices arrangedas follows: The greater portion of the shaft 50 is reduced in diameter and arranged to slide in a bushing 53 which rotates in the outer bearing 49 of the arm A. The hub 51 of the hand-wheel H is secured fast on the bushing 53 b means of pins or keys 55, with its end a utting. the end of the bearing 59. Abutting the inner end of the bearing 4:9 is a bevel-gear 55 secured in place on the bushing 53 by a pin 56 in its hub 57. The gear 55 meshes with a correspondin bevelear 58 on" the vertical shaft 52 an throug this arrangement the bushing 53 is driven continuously therefrom.

On the left-hand end of the shaft 50 is a bevel-gear 60 secured rotatively therewith by a cross-pin 61 in itshub 62; -while'0u the opposite side of the bearing i8 is a similar gear 63 also keyed to the shaft 50 by a pin 64 extending through its hub; 65. The hubs 62 and 65 of the gears 60 and '63 are spaced a art on the shaft 50 to allow a limlted sli ing movement of the shaft in the bearingdS. When the shaft 50 is slid to the left .to carry the hub 65 of' the gear 63 against the end of the bearing 48 -the end gear 60 is carried into mesh with a bevel-gear 66 which is keyed to' a vertical shaft 67 by, means of ain 68. The vertical shaft 67 is journale in bearings 69- 7 O projecting across the interior of the arm A and at its upper end is a bevel-gear 71 pinned thereto at 72. The gear 71 meshes with a bevel-gear 73 fast on the end of a horizontal shaft 74 which extends to-fthe front of. the sewing-machine head and serves to drive the reciprocating needlebar, not hereinshown. The gear 63 on the shaft50 is adapted to mesh with the previously-mentioned ear 44 on the lower end of the shaft 36 w ich drives the bobbin winder W. To engage is slid to the right in the bearin 4:8 and bushing 53,as shown in Fig. 3, I; for this purpose a finger-knob 75 is provided on the outer end of the shaft, being fastened there'- theright. F

Referring to Fig. 1, on the top of the arm A is a spindle 80 held in a lug 81 and adapted to receive the spool S of thread which furnishes the supply to the needle of the sewing-machine. The s 001 S also supplies the thread for the bob in B and when the latter is being wound the strand t is led through a tension-device T of any suitable construction, and thence through the slot 25 in the guide 5 to the barrel of the bobbin b. a

The method of operation of the bobbin- -winder W and the manner of controlling its driving-means is as next explained: Normally, when the sewing-machine is being used for stitching, the control shaft is slid to the left with its end-gear 60 in'mesh with the gear 66 on the vertlcal shaft 67, as illustrated in Fig. 1. It will be noted from this view that when the shaft 50 is in the osition above described its gear 63 will be free from the gear 44 on the winder driveshaft 36 and therefore the winding-mechanism will remain inoperative. When the main power-shaft 52 of the machine is rotated from the treadle or other driving-means its motion is transmitted through the bevelgears 58 and to rotate the bushing 53. The bushing 53, being connected rotatively with the shaft 50 through its wheel H and the clutch-knob 7 5, causes the shaft to be driven therefrom and through the cars 60 and 66 drives the vertical shaft 6 The shaft 67 in turn, drives the horizontal shaft 74 which transmits motion to the reciprocating needle-bar; and the under loopermechanism and feed of the machine may also be connected to be driven from the sha 67 through suitable connections not herein shown or described.

When it is required to wind a bobbin for the sewing-machine shuttle or 'looper-bowl the shaft 50 is drawn out to the right and the knob 75 turned slightly. to engage the end of its lugs 77 with the offset steps 79 in the slots 78 of the hub 51 of the wheel H. This shifting of the shaft 50 acts to disengage its end-gear 60 from the gear 66 on the shaft 67 so that the parts of the stitching-mechanism connected therewith will remain at rest while the bobbin is being wound. The withdrawal movement of the shaft 50 engages its gear 63 with the gear 44 on the winder drive-shaft 36, while at the same time the knob 75 remains in clutch with the hub 51 of the wheel H so that the shaft 50 is still connected to be driven from the bushing 53,'as shown in Fig. 3. Now, when the power-shaft 52 is rotated again the train of gearing 5855 and 63-44 will drive the shaft 36 to operate the winder W. Referring to Fig. 1, the shaft 36 transmits rotation through the gears 41and 33 to the winding-spindle 4, and its end-pinion 40 also drives the gear 30 to rotate sleeve 19 at a slower rate of speed.-- Thus, asthe spindle 4 ,is driven at a relatively. fast rate to rotate the bobbin 1) to wind the thread t onto its barrel 15, the: cam 20 is also rotated at a slower speed to im art a risin and falling, reciprocating motion to the t read-guide 5. It has before been explained that in preparin the device for windin the thread t is le through the slot 25 in he guide 5 and its end secured to the barrel 15 of the bobbin b, and as the latter is rotated the reci rooation of the guide causes the thread to e traversed back and forth between its heads 1616. The thread t is thus caused to be laid in helical turns to build up a square-ended cop or bobbin B composed of a regular succession of uniform la ers'having the windings disposed in close y adjacent turns as illustrated 1n Fig. 2. When the bobbin is completed the thread from the spool S is detached and again threaded through the needle of the sewing-machine. The winder W is then disconnected from its driving-means by turning and pushing the knob to slide the shaft 50 to the left, whereby the drivin gears 63 and 44 are disengaged and t e stitching-mechanism of the sewing-machine once more connected to the drive in the manner as first explained.

It will be observed that my improvement provides an extremely simple, compact winder having its operating-mechanism enclosed within the Walls of the sewing-machine head to' protect it from dust and lint, while being out of the way and hidden from view so as not to detract from the ornamental appearance of the machine. The parts of the mechanism are few in number and of such design as to provide for constructing them from sheet-metal stampings, whereby to secure the greatest economy in cost of manufacture. It will also be noted that the winding-device proper is arranged to be driven from the powerdrive ofthe machine and actuated at the will of; the operator without driving the stitching-mechanism, while ,being disconnectable from the drive through a simple movement of the hand. It is to be understood, however, that my improved winder is adaptable to other purposes than that herein described and may be used as a sepa-- rate machine or applied to looms and other textrle apparatus. Moreover, various modificatlons might be made in the structure and arrangement of the'parts of the mechanism" without departing from the spirit or scope of the invention; therefore, without limiting myself to the exact embodiment herein shown and described, what I claim is:

1. In a bobbin-winder for sewing-ma chines, the combination with the hollow arm projecting outwardly therefrom in op osite parallel relation to the winding-spin le, a

traverse cam' mounted free-"to, turn-on thespindle within the arm and engaging-db rectlywith the "guide to reciprocate the latter, and means within the arm for driving the spindle and cam at difierent speeds.

2. In a bobbin-winder for sewing-machines, the combination with the hollow arm of the machine head, of a winding-spindle rojecting from bearings in the arm, a dished sheet-metal camfhaving a helical rim supported from a hub mounted free to rotate on the spindle, a thread-guide consisting of a bar slidable in hearings in the arm and projecting therefrom in parallel relation to the spindle, said thread-guide provided with means integral therewith for enga 'ng opposite sides of the rim of the cam, an means for driving the spindle and cam at different speeds.

3. In a winding machine, the combination with a rotatable winding-spindle, of a helical cam mounted free to rotate on said spindle, a thread-guide slidable in bearings in arallel relation to the spindle and engagmg directly with the rim of the cam, a gear fast with the cam, a second car fast with the spindle, a drive-shaft, an gears fast on said drive-shaft and arranged in mesh with the cam-gear and spindle-gear.

4. In a winding machine, the combination with a winding-spindle on which the co or bobbin is wound, of a sheet-metal diskike cam having its rim distorted from the radial plane to form it into a continuous helix, a

fiat sheet-metal thread-guide dprovided with a guiding-slot at one end an unched out to form op osite integral lugs or engaging op osite si es of the rim of the cam, said guide slidable in hearings in parallel relation to the spindle, and means for driving the spindle and cam at .difierent speeds.

5. In a winding machine, the combination with a box-like casing, of a winding-spindle journaled in hearings in said casing with its end projecting therethrough to receive the cop or bobbin, a traverse-cam rotatably mounted on the spindle Within; the casing, a thread-guide slida-ble in bearings inthe casing with its end projecting therethrough and slotted to receive the thread to direct it to the bobbin, said threadide formed with integral in engaging irectly with the cam to cause t e guide to be reci rocated therefrom, and means for driving t e spindle and cam at diflerent speeds.

6. The combination with the hollow arm of a sewing-machine head provided with bearings on its interior, of a winding-spindle journaled in the hearings on the arm and projecti through its walls to adapt it to receive t e cop or bobbin, a thread-guide eonora slidable'in bearings withirr'the arm and projecting through the walls of the latter in" position to guide the thread onto the bobbin,

a traverse-cam mountedfre'e to rotate on the s indle and connected directly with the t read-guide to reciprocate the latter, and

driving-means enclosed-,within'the arm and adapted to be connected to drive the winding-spindle and traverse-cam.

The combination with the hollow arm of a sewing-machine head provided with bearings on Its interior, of a winding-spindle journaled in said bearings and projecting outside the arm to receive the co or bobbin, a thread-guide slidable in bearings on the arm and projecting therefrom in opposite parallel relation to the spindle, a traversecam journaled on the spindle within the arm and connected directly with the threadguide to reci rocate the latter, a main owershaft extending through the arm, an manually-operable devices for connecting said power-shaft to drive the winding-spindle and traverse-cam.

8. The combination with the hollow arm of a sewing-machine head, of a windingspindle journaled in bearings on the arm and pro'ecting therefrom to receive the cop or bobbln, a threaduide slidable in bearings on the arm an projecting therefrom opposite the winding-spindle, a traverse-cam for reciprocatin the guide, gearing for rotating the spind e and cam, a shaft for driving'the gearing, a power-shaft, a drive-shaft for the stitching-mechanism of the machine, gears on the power-shaft for alternate connection with the drive-shafts of the windingand stitching-mechanisms, and manually-operable means for shifting said gears.

9. In a sewing-machine bobbinwinder, the combination with a rotatable winding-spindle, of a reciprocable thread-guide arranged opposite the spindle, artraverse-ca-m for reclproca-ting the guide, a drive-shaft connected to drive the s indle and traverse-cam, a gear on said sha t, a power-shaft adapted to slide in its bearings, a gear on said powershaft adapted to be engaged with the gear on the drive-shaft, and means for rotating the power-shaft while allowing it to he slid to shift its gear.

10. In a sewing-machine bobbin-winder, the combination with a rotatable windingspindle, of a traversing thread-guide, means .to traverse the guide, a drive-shaft connectgaged with the gear on the drive-shaft, a driving-element on the power-shaft, and

means for connecting said driving-element rotatively with the power-shaft while allowing the latter to be shifted in relation thereto.

11. In a bobbin-winder, the combination with a rotatable winding-spindle, of a traversing thread-guide, means for traversing the thread-guide opposite the winding-spindle, a drive-shaft connected to drive the winding-spindle and traverse-means, a gear on the drive-shaft, a power shaft slidable in a bushing, a driving-element fast on the bushing to rotate the latter, means for com nesting the wer-shaft rotatively with the 1 bushing Whl e allowing it to slide therein,

and a gear on the power-shaft adapted to be engaged with the gear on the drive-shaft. In testimony whereof I affix my signature.

SIMON W. WARDWELL. 

